IVHS Countermeasures for Rear-End Collisions, Task 1. Volume 4: 1992 NASS CDSCase Analysis

摘要

This volume of the Task 1 Interim Report for IVHS Countermeasures for Rear-EndCollisions, Contract DTNH22-93-C-07326, deliverable item 5, contains an overview and summary of the analysis of rear-end collision cases from the 1992 National Accident Sampling System Crashworthiness Data System (NASS CDS). The purpose of this analysis was to determine the specific nature of each rear-end collision in order to help identify valid collision countermeasures for each dynamic situation and system type. The different types of dynamic situations are described in detail in Volume I of this report. By analyzing in detail each accident based on the dynamic situation the occurrence of each type of dynamic situation can be determined. This allows estimation of the occurrence of dynamic situations within the entire population of rear-end collisions. Once the population of dynamic situations had been estimated, functional goals can be developed that are qualitative descriptions of the data processing algorithms which will drive the processing function of countermeasure systems. Functional goals will be unique to each dynamic situation and possible unique to each system type (i.e., headway maintenance, driver warning, automatic control). The clinical analysis performed on the 1992 NASS CDS is also being used to provide inputs to the simulation effort (Task 4). The method used to select cases to analyze is descibed in Section 2. A summary of the results of the analysis of cases selected from the 1992 NASS CDS is contained in Section 3. The raw data from thes cases listed is contained in Appendix A. A summary of this analysis is in Section 4.